Align managed SRP camera request planning

engine/include/XCEngine/Rendering/AGENTS.md

@@ -107,6 +107,7 @@ SceneRenderer
   `DefaultSceneRendererUsesManagedUniversalPipelineForPlannedMainSceneAndPostProcessRender` 保证 managed URP 通过显式 renderer/pass 录制主场景和后处理。
   `ManagedRenderContextExposes*ThroughRenderingData` 保证 managed renderer 可通过 `RenderingData` 观察 camera / lighting / shadow / environment / final color / stage color 数据。
   `ManagedStageRecorderRecordsMainSceneThroughScriptableRenderContext` 保证主场景通过 `ScriptableRenderContext` 的显式 draw 能力录制。
+  `ScriptCoreUniversalRendererFeatureConfiguresCameraRequestPolicy` 保证 URP renderer feature 能通过产品层相机请求策略真正禁用 native 默认方向光阴影规划。
 
 ## 10. 后续演进方向
 - 继续补齐 URP 上层组织能力，但不能破坏 builtin / programmable 的显式切换语义。
@@ -119,4 +120,5 @@ SceneRenderer
 - 确立 managed 公开层只通过 `DrawRenderers(...)`、`DrawSkybox()`、`DrawOpaqueRenderers()`、`DrawTransparentRenderers()` 表达 native draw 能力；pass / feature / stage 的组织权归 managed SRP / URP。
 - `ScriptableRenderer` 统一驱动 renderer feature 的 frame-plan、scene-setup、directional-shadow execution 配置；`RendererBackedRenderPipelineAsset` 清掉 native 默认 optional stage 后再让 renderer / feature 显式请求。
 - `CameraRenderRequestContext.hasDirectionalShadow` 和 `ClearDirectionalShadow()` 从 ScriptCore public surface 收回 internal，避免 core public API 泄漏 native shadow 规划控制。
+- 收口 managed 相机请求策略顺序：`MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest` 先生成 native 默认方向光阴影基线给 managed / URP 观察，再按 managed 最终策略重算或清除，避免 `ClearDirectionalShadow()` 之后又被 native 默认规划补回。
 - 当时验证：`xcengine_managed_assemblies`、`scripting_tests` 构建通过；聚焦 `MonoScriptRuntimeTest` 12 项 SRP / URP / API surface 测试通过。

engine/src/Scripting/Mono/MonoScriptRuntime.cpp

@@ -2104,13 +2104,21 @@ void MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest(
     size_t renderedRequestCount,
     const Rendering::DirectionalShadowPlanningSettings&
         directionalShadowSettings) const {
+    const auto applyDefaultDirectionalShadowPolicy =
+        [&request,
+         renderedBaseCameraCount,
+         renderedRequestCount](
+            const Rendering::DirectionalShadowPlanningSettings& settings) {
+            request.directionalShadow = {};
+            Rendering::ApplyDefaultRenderPipelineAssetCameraRenderRequestPolicy(
+                request,
+                renderedBaseCameraCount,
+                renderedRequestCount,
+                settings);
+        };
+
     if (!EnsureManagedAsset()) {
-        request.directionalShadow = {};
-        Rendering::ApplyDefaultRenderPipelineAssetCameraRenderRequestPolicy(
-            request,
-            renderedBaseCameraCount,
-            renderedRequestCount,
-            directionalShadowSettings);
+        applyDefaultDirectionalShadowPolicy(directionalShadowSettings);
         return;
     }
 
@@ -2118,12 +2126,7 @@ void MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest(
     MonoMethod* const method =
         ResolveConfigureCameraRenderRequestMethod(assetObject);
     if (assetObject == nullptr || method == nullptr) {
-        request.directionalShadow = {};
-        Rendering::ApplyDefaultRenderPipelineAssetCameraRenderRequestPolicy(
-            request,
-            renderedBaseCameraCount,
-            renderedRequestCount,
-            directionalShadowSettings);
+        applyDefaultDirectionalShadowPolicy(directionalShadowSettings);
         return;
     }
 
@@ -2134,6 +2137,8 @@ void MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest(
     requestContextState.renderedRequestCount = renderedRequestCount;
     requestContextState.directionalShadowPlanningSettings =
         directionalShadowSettings;
+    applyDefaultDirectionalShadowPolicy(
+        requestContextState.directionalShadowPlanningSettings);
     const uint64_t requestContextHandle =
         RegisterManagedCameraRenderRequestContextState(
             requestContextState);
@@ -2143,12 +2148,6 @@ void MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest(
     if (requestContextObject == nullptr) {
         UnregisterManagedCameraRenderRequestContextState(
             requestContextHandle);
-        request.directionalShadow = {};
-        Rendering::ApplyDefaultRenderPipelineAssetCameraRenderRequestPolicy(
-            request,
-            renderedBaseCameraCount,
-            renderedRequestCount,
-            directionalShadowSettings);
         return;
     }
 
@@ -2159,12 +2158,8 @@ void MonoManagedRenderPipelineAssetRuntime::ConfigureCameraRenderRequest(
         args,
         nullptr);
     request.directionalShadow = {};
-    if (requestContextState.suppressDirectionalShadow) {
-    } else {
-        Rendering::ApplyDefaultRenderPipelineAssetCameraRenderRequestPolicy(
-            request,
-            renderedBaseCameraCount,
-            renderedRequestCount,
+    if (!requestContextState.suppressDirectionalShadow) {
+        applyDefaultDirectionalShadowPolicy(
             requestContextState.directionalShadowPlanningSettings);
     }
     UnregisterManagedCameraRenderRequestContextState(